Linux is a powerful and versatile operating system that is widely used in servers, desktops, and embedded systems. It is known for its stability, security, and flexibility, making it a popular choice among developers and system administrators alike. The core of Linux is the Linux Kernel, which is the foundation upon which various distributions are built. One of the key features of Linux is its open-source nature, allowing users to modify and distribute the software freely. This has led to a vibrant community of developers and users who contribute to its continuous improvement. Popular distributions include Ubuntu, Fedora, and Debian, each catering to different user needs and preferences.